Timing control device and control method thereof

摘要

Provided is a timing control device including: a storage unit that stores multiple pieces of timing control information including identification information and expected value data; a first selector that selectively outputs any of the multiple pieces of timing control information; a second selector that selectively outputs any of data items output from data output devices based on the identification information; a reference data generation unit that generates reference data based on expected value data and a data item output from the second selector in synchronization with a switching of the timing control information; a comparator that compares the reference data with the data item output from the second selector and outputs a coincidence signal when the reference data and the data item coincide with each other; and an output control unit that outputs a timing signal according to the coincidence signal.

主权项

1. A timing control device comprising:
a sequencer that selects one from among a first data output unit and a second data output unit at a first timing and selects the other from among the first data output unit and the second data output unit at a second timing; a first comparison unit that compares an output data from the first data output unit with a first expected value and compares an output data from the second data output unit with a second expected value; and a first output control unit that outputs a first signal having a first pulse width determined by results of the first comparison unit, wherein the second timing is a timing when the first comparison unit indicates that the output data from the first data output unit and the first expected value are matched.